Sitting Ducks DNS attack A Bad RCE in another Microsoft server SinkClose The CLFS.SYS BSoD IsBootSecure Rethinking Revocation Show Notes - https://www.grc.com/sn/SN-987-Notes.pdf Hosts: Steve Gibson and Leo Laporte Download or subscribe to this show at https://twit.tv/shows/security-now. Get episodes ad-free with Club TWiT at https://twit.tv/clubtwit You can submit a question to Security Now at the GRC Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve's site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Sponsors: joindeleteme.com/twit promo code TWIT bigid.com/securitynow vanta.com/SECURITYNOW 1password.com/securitynow